I think you're trying to read something into it that's not there to be honest. I noticed it in both games myself. It's just a self-preservation move when you're being just a little more careful to insure you don't get injured. Nobody has said his game went to hell in a hand basket with him bailing on every throw. It's just an observation on something he's done that wasn't there in the past. In all honesty, I thought it was a wise decision on his part, with the speed of the pass rush against him on those plays.
As a coach, I told my QBs that when a play is busted, and you're being rushed, just dump the ball out and stay out of harm's way. Live to play another down.